化学
胺气处理
二氧化碳
化学计量学
吸附
湿度
碳酸氢盐
相对湿度
水分
离子交换
碳酸
离子交换树脂
无机化学
氨基甲酸
离子
有机化学
物理
热力学
作者
Oluwaseun Akingbogun,Laurence Muhr,Cécile Vallières
标识
DOI:10.1080/01496395.2017.1293094
摘要
This paper evaluates moisture content effects on CO2 capture of an ion-exchange resin (IER) functionalised with a primary amine group. IER capacities were determined by breakthrough with an inlet gas containing 10 vol% CO2, nitrogen and various moisture contents. Three types of behaviour were identified according to humidity level. In saturated air conditions, the stoichiometry could be justified by carbonates and bicarbonates fixation. In dry conditions, we suspect a joint physical adsorption and reaction mechanism. For intermediate humidity, the stoichiometry of 1 CO2 for 1 amine group is consistent with a bicarbonate fixation or carbamic acid formation.
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